Stencil Spraying; Spray Tip Selection - Graco 18H269 Operation Manual

Stencil Spraying

1. Loosen gun retainer knob.
2. Remove gun from holder.
3. Trigger spray gun over stencil pattern.
4. Return gun to holder.
5. Tighten gun retainer knob.
NOTE: When using the spray gun by hand,
static build up and static shocks can occur.
If you cannot position the striper on a
grounded surface or connect the grounding
wire and clamp to a metal post, try the
following to help reduce static build up:
•
Stand on a true grounded surface when
spraying, such as grass.
•
Try wearing a different type of shoes.

Spray Tip Selection

Selecting Tip Size
Spray tips come in a variety of sizes for
spraying a range of fluids. Your sprayer
includes a tip for use in most paint spraying
applications. See Component
Identification, page 8, for more information.
Hints:
•
As you spray, the tip wears and
enlarges. Starting with a tip hole size
smaller than the maximum will allow you
to spray within the rated flow capacity of
the striper.
•
Use larger tip hole sizes with thicker
coatings and smaller tip hole sizes with
thinner coatings.
•
Tips wear with use and need periodic
replacement.
•
Tip hole size controls flow rate - the
amount of paint that comes out of the
gun.
3A9031D
How to Spray
Fan Width
Fan width is the size of the spray pattern,
which determines the area covered with
each stroke.
Hints:
•
Select a fan width best suited to the
surface being sprayed.
•
Wider fans provide better coverage on
broad, open surfaces.
•
Narrower fans provide better control on
small, confined surfaces.
Understanding Tip Number
The last three digits of tip number (i.e.:
LL5421) contain information about hole size
and fan width on surface when gun is held 6
in. (15.2 cm) from surface being sprayed.
Rac5 tips are measured at 6 in. (15.2 cm)
from surface.
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